<?php

function message($message)
{
	global $topics, $logFh, $devices;
	$topic = explode ("/", $message->topic);
	if ($topic[1] == "bridge")
	{
		switch ($topic[2])
		{
			case "info":
				$topics[$topic[0]]->info = json_decode($message->payload);
				break;
			case "devices":
				$topics[$topic[0]]->devices = json_decode($message->payload);
				fwrite($logFh, print_r($topics[$topic[0]]->devices, true));
				mkDevicesDB($topic[0], $topics[$topic[0]]->devices);
				break;
			case "groups":
				$topics[$topic[0]]->groups = json_decode($message->payload);
				mkDevicesDB($topic[0], $topics[$topic[0]]->groups, true);
				break;
			case "extensions":
				$topics[$topic[0]]->extensions = json_decode($message->payload);
				break;
			case "config":
				$topics[$topic[0]]->config = json_decode($message->payload);
				break;
			case "logging":
				//TODO
				break;
			case "state":
				$topics[$topic[0]]->state = $message->payload;
				break;
			default:
				break;
		};
	}elseif (($topic[array_key_last($topic)]) != "get" and ($topic[array_key_last($topic)]) != "set")
	{
		$topic = explode ("/", $message->topic, 2);   	// get topic name
		$fnTree = explode ("/" , $topic[1]); 				// get friendlyname
		echo $topic[0] . " => " . $topic[1] . EOL;
		//$devices[$topic[0]][$fnTree[0]]->json = json_decode($message->payload);
		$device = & $devices[$topic[0]];
		foreach($fnTree as $fn)
		{
			//print_r($device) ;
			if (!isset($device[$fn]))
			{
				logger(LOG_INFO, $logFh, "init of " . $fn .EOL);
				$device[$fn] = array();
				$device[$fn]["device"] = new device;
			}
			$device = & $device[$fn];
		}
		changeDevice($topic[0], $topic[1], $device["device"], $message->payload);
		//fwrite($logFh, print_r($msg, true));
	}
}

// payload is an array :
// key is parameter => value is value of parameter

function publish($device, $payload, $commande="set", $eventKey)
{
	global $client, $mids, $logFh;
	//print_r($payload);
	$string = $device->topic . "/" . $device->friendlyName . "/" . $commande;
	$mid = $client->publish($string, json_encode($payload) , 2);
	if (isset($mids[$mid]))
	{
		//echo "unsetting mids" .EOL;
		unset ($mids[$mid]);
	}else
	{
		//echo "setting mids" .EOL;
		$mids[$mid] = true;
	}
	//echo $string . " =>>>>>> " . json_encode($payload) . EOL;
	logger(LOG_INFO, $logFh, "Publishing " . $string . " with payload => " . json_encode($payload));
}

function connectResponse($r, $message)
{
	global $connected;
	echo _("I got code ") . $r . _(" and message : '") . $message . "'" . EOL;
	switch ($r)
	{
		case 0:
			echo _("Successfull connection") . EOL;
			$connected = true;
			break;
		case 1:
			echo _("Connection refused : unacceptable protocol version") . EOL;
			$connected = true;
			break;
		case 2:
			echo _("Connection refused : identifier rejected") . EOL;
			$connected = true;
			break;
		case 3:
			echo _("Connection refused (broker unavailable )") . EOL;
			$connected = true;
			break;
	}
}

function subscribeResponse($mid, $qosCount)
{
	global $topics, $mids, $nSubscribed;
	$key = $mids[$mid];
	echo _("Subscribed to ") . $key . EOL;
	$topics[$key]->status = true;
	$nSubscribed += 1;
}

function unsubscribeResponse($mid)
{
	global $client;			//$topics, $mids, $nSubscribed;
	//$key = $mids[$mid];
	echo _("Unsubscribed");		// from ") . $topics[$key]->name . EOL;
	//$topics[$key]->status = false;
	//$nSubscribed -= 1;
	$client->disconnect();
}

function disconnectResponse($r)
{
	global $connected;
	if ($r != 0)
	{
		echo _('Badly ');
	}else
	{
		echo _('Cleanly ');
	}
	echo _("disconnected from server") . EOL;
	$connected = false;
}

function publishResponse($mid)
{
	global $mids, $events;
	logger(LOG_INFO, "Event with mid = " . $mid . " published by MQTT broker");
	if (isset($mids[$mid]))
	{
		//echo "unsetting mids" . EOL;
		unset ($mids[$mid]);
	}else
	{
		//echo "setting mids" . EOL;
		$mids[$mid] = true;
	}
}

function logger($level, $log)
{
	global $logFh, $logLevel;
	if ( $level >= $logLevel)
	{
		fwrite($logFh, "$level : $log" . EOL);
		print ("$level : $log" . EOL);
	}
}

?>